I suppose I can safely offer one example of how the G$ TB can destroy a site.
A new site was created,
To protect from competition and hostile individuals, the .org and .net versions were also set. They were parked on top of the .com site. So, one could surf to
and see the same content as kw1kw2.com
Over time, there were only a couple of incoming links to kw1kw2.com. There were never any links to kw1kw2.org or kw1kw2.net. Not a one. Not a single SE ever had a legitimate reason to crawl the other 2 domains or even know they exist.
Initially, kw1kw2.com went straight to #1 in SERPs only because it is a very precise kw combination that is not common to be otherwise put together in a domain name.
But G$ used the TB to "see" three new sites, and BAM! the real site was hit with a dupe filter. The site disappeared from SERPs -- right at a critical time when the kw search got a drastic bump upward. It was gone when needed the most.
Searching with the site: command, all three of the domains were listed -- but with no descriptions.
G$ toyed with the owner, forcing the webmaster to spend time needlessly.
Attempting to use G$'s "url-remove" system required a massive amount of unpaid time. To remove the two other domains, it required that each had its own domain name email address in order to "register" under the time-wasting G$ url-remove system.
As such, the .org and .net domains had to be converted to full-blown websites in their own right (instead of being merely parked on top of an existing domain), and then email addresses had to be established respectively. A robots.txt file also had to be created in each of the two other domains to DISALLOW all user-agents throughout each respective site.
After all that, then using the email address for the .org domain, the webmaster had to create a new G$ account, "register," log-on to G$, and then ask G$ "pretty pretty please delete kw1kw2.org."
The same steps had to be followed all over again for the kw1kw2.net domain too.
A day or so later, G$ decided it was finally willing to remove the two domains.
But it did not then restore the penalized kw1kw2.com site. The webmaster then had to wait for whenever G$ decided to update everything again.
By then, it was too late to benefit from the drastic bump in temporary traffic.
I saw that happen for domains not even 6 months old and with no links to them. The only way that can happen is by G$'s privacy-invasion of its TB! It listed sites it never would have otherwise had a reason to crawl. G$ was the one who made the error that never should have happened, and G$ made it cost the webmaster the unpaid time -- while G$ spent nothing to correct the problem they created. And when it was all said and done, G$ still did not immediately restore the original site to the SERPs! Everything about that whole situation is just wrong.
It doesn't make one a basher to see that!
So, the next time someone tries to suggest that G$'s TB is benign, just remember, it's a lie. With it, G$ is watching and recording everywhere you go.
I fully appreciate and understand that not everyone who might even innocently make a pro-G$ statement is necessarily a full-blown G$ cultist. But, making statements that suggest that a reality is the backside output of a male bovine endangers one of coming close to it.